Compensating gearing.



' PATENTED JUNE 30, 1903,

H. L. WARNER. GOMPENSATING GEAR. APPLICATION II-LED SEPT. 13, 1002.

nil l UNITED STATES HUGH L. WARNER,

COMP ENSATING GyEARlNG- Patented has so, 1903,

OF DAYTON, OHIO.

SPECIFICATION formingpart of Letters Patent No. 732,327, dated June 30,1903.

Application filed September 13, 1902. Serial No. 123,263. 1 (No model.)

To aZZ whom it may concern.-

Be it known that I, HUGH L. WARNER, of Dayton, in the county ofMontgomery and State of Ohio, have invented a new and use- The objectsof my improvements are, first,

to produce a compensating gearin which the various parts that aresubject to wear can be made independent of each other; second, toproduce a compensating, gear that can be made and sold as a perfectcompensating gear independent of how it is to be driven, whether bybelt, chain, spur-gear, or otherwise; third, to produce a compensatinggear that when fitted with such driver it need be nothing more than arim attached to the outer periphery of my gear by any suitable means;fourth, to produce a compensating gear so constructed that the usualdriver will readily interchange from'one side to the other; fifth,

. to produce a compensating gear in which the driver, being a separatepiece and wearing out much faster than any other part, may be V takenoff and a new one replaced without opening the working parts; sixth, toproduce a compensating gear in which while in actual use the smallpinions and their axles, which are liable to strains, can be taken outandexamined or replaced independent of each other and independent of anyother part, so as not to remove the entire gear for such purposes, and,seventh, to produce a compensatiug gear that has the strongestconstruction, most perfect alinement, most durable in wear, andeconomical to manufacture, all because of the one-piece frame, in whichthe pinions are independently set, perfectly axle, or in variousotherways. 2 the spur-gear F fastened on the solid axle G by the smallkey g, and the spur-gear E housed, properly separated, andself-contained and which also carries the two large spur-gears inperfect alinement and their retainers; and to accomplish these objectsmy compensating gear'consists of the mechanism illustrated in theaccompanying drawings, in which- Figure 1 is a face view of mycompensating gear, the axles removed, Fig. 2 is asectional view taken,respectively, on a lineA B, Fig. 1, the axles being shown in position.Fig. 3 is a part of the driving member, the remainder broken away. Fig.4 is a sectional view taken, respectively, on a line E F, Fig. 1, whichshows how the pinions and their bearing-bolts are mounted in the frame.Fig. 5 is a section of the frame only, taken, respectively, on a liueAG,Fig. 1, all partsremoved. Fig. 6 is a face view of the frame only, allparts removed, showing the opening for the large spur-gear and openingsfor three pinions, a duplicate set of openings being in the oppositeface. Fig. 7 is a face view of one of the retainers. Fig. 8 is a view ofone pair ofpinions and the two large spur-gears as they are in theframe. Fig. 9 is a side View of a pinion bearing-bolt, the small endshown in section through center, so the internal thread can be seen.

Similarletters refertosimilarpartsthroughout the several views.

My compensating gear consists, essentially,

of a frame 13, one or more pairs of pinions P, spur-gears E and F, boltsJ, and retainers C, which when assembled may be mountedon two abuttingaxles, one spur-gear on each I show in'Fig.

vided with outwardly-extending hubs e and f which may be used to fastento. The outer radial face of the rim 0 which has spur-teeth 0 comesflush with the outer face of the web 0. (See Fig. 2.)

The pinions L and M, arranged in pairs, are usually equally spacedaround the spurgears. The entire length of a single pinion is not quiteas long as the width of the face of a spur-gear plus the space betweenthe spur-gears. (See Fig. 8) The pinions of each pair engage each otherand engage the spurgears, respectively.

The pinion bearing-bolt J (see Fig. 9) is preferably made of a singlepiece and has a large head j, with an extension of flangej which when inposition, as in Fig. 2, performs three duties at once. First, it forms adust-proof cover for the pinion L and holds it in place against thebottom m; second, it forms a rigid support for the outer end of saidpinion, and, third, it holds the retainer 0 in place. The outer fiangejfits in against the shoulder b Fig. 5, and prevents the bolt going intoo far, so as to bind the pinion endwise. The small end of the boltJ isprovided with means for engaging the frame and for being locked fast.Said means is preferably the external and internal thread and 0, onethread being a coarse right-hand and the other a fine left-hand orotherwise.

The retainers C and D, Fig. 2, hold the spur-gears E and F in place,said retainers being held in place by a series of bolt-heads J, whichengage the niches c of the retainer 0. (See Fig. 7.) The retainer 0 hasa small flange 0' around the outer periphery, which fits against theshoulder Z)", Fig. 5, and prevents it from going in too far and bindingthe large spur-gears.

The driving member A, which in the drawings is a sprocket-rim, (andwhich in practice may be something else,) is provided with teeth a onits outer periphery for engaging a driving-chain, andinwardly-projecting lugs a having counterbored holes a, adapted toreceive the screws a and forms a means for fastening the driver A on theframe B.

The frame B consists of three annular bands 12*, b, and b fastenedtogether as follows: Z) is of a smaller diameter than 17 and is placedwithin it and joined to it by webs or spokes b and pinion-cases I2 and 6and within b is the third and smallest band I), fastened to the band 12by the web 19 as seen in Figs. 1, 2, 5, and 6. The band b is not so wideas the two outer bands I) and b and has flanges b 'and I) turned out onits bearing-box for the hubs e and f of the two spur-gears. The outerband I) has a series of inwardly-projecting lugs a on one edge and aduplicate series at on the opposite edge. These lugs are preferablythreaded to receive the screw a.

My compensating gear when assembled is very light and compact. As willbe seen in Figs. 1 and 2, the adjacent ends of the hubs 6 and f are incontact, while the outer periphery of said hubs fit snugly into thecentral bearing-box I9 The inner radial faces of the spur-gear webs formbearings against the outer faces of the flanges b and b and theoverhanging rims c are supported by the outer peripheries of the flangesb and b. The spur-gears are held in place by the retainers and theretainers by the pinion-bearing'bolt heads. The hollow spaces S and Sare oil-chambers for grease or Vaseline.

The peculiar construction of the pinioncases I) and Z1 is such that witheach pair of pinions in order to engage each other they have to beinserted from opposite faces of the frame and run in individual cellsalmost completely incased and on independent bearingbolts. Thus I amenabled to assemble my compensating gear independent of thedriving'attachment.

Referring to Figs. 1 and 2, it is plain to be seen that if I want toremove an individual pinion or bearing-bolt I need only to remove thelocking-screw O in the small end of the pinion bearing-bolt, removingthe bolt and pinion, and if I wish to examine the large spur-gears Ineed only remove the pinion bearing-bolts and the retainers, and thewhole internal mechanism is exposed and may be withdrawn. Both faces ofthe frame B being exactly alike, it is plain to be seen that the partswill interchange.

I am aware that prior to my invention coinpensating gears have been madein which a pair of spur-gears placed side by side and mounted on axleswere respectively engaged by a pair of spur-pinions having hubs and saidpinions engaging each other.

I therefore do not claim such a combination broadly; but

What I do claim as my invention, and desire to secure by Letters Patent,is-

1. In the frame of a compensating gear, the combination of an outerband, and an inner band connected to the outer band by spokes or webs,and a central bearing-box connected to the inner band.

2. In a frame of a compensating gear, the combination of an outer band,an inner band, connections between the two bands, individualpinion-cases arranged in pairs and connected to the inner band, and abearing-box in the center of the inner band, and a rigid connectionbetween the two, substantially as described.

3. In the frame of a compensating gear, the combination of an outer bandconnected to an inner band, a central bearing-box connected to the saidinner band, and individual pinion-cases arranged in pairs with the twoopenings of each pair disposed in opposite directions, substantially asdescribed.

4. In a compensating gear, the combination of an outer band and an innerband connected to the outer band, a central bearingbox connected rigidlyto the inner band, two spur-gears carried by the bearing-box one oneither side thereof, and retainers fitted within the inner band forholding the spur-gears in position, substantially as described.

5. In a compensating gear, the combination of an outer and an inner bandconnected together, a central bearing-box connected to the inner band, apair of spur-gears mounted within the inner band and having their innerhubs journaled in the said bearing-box, one or more pairs of pinionseach pinion mounted in an individual case and each pair of pinionsengaged with each other and respectively engaged with the spur-gears,substantially as described.

6. In a compensating gear, the combination of a frame having an outerband, an inner band, a central bearing-box, two spurgears with the innerhubs journaled in said bearing-box, retainers substantially the samesize as the spur-gears with projectingflanges thereon fitted inside theinner band, individual pinion-cases arranged in pairs and connected tosaid innerband, pinions mounted within said cases, and bearing-boltswhich go through said pinions and engage the bottoms of saidpinion-cases and are provided with heads of suflicient size to cover theends of the pinions and form rigid bearings for their outer ends,substantially as described.

7. In a compensating gear, the combina tion of a frame having in eachface a like series of individual pinion-openings with hottoms to saidopenings, and each opening adapted to receive a spur-pinion, a spur-gearin the center of each face, and a pinion inserted in each openingsubstantially as described.

8. In a compensating gear, the combination of a frame having in bothfaces thereof, a like series of openings with bottoms, and an individualgear or pinion inserted in each of said openings, and individualretainers which form covers for each individual gear or pinionsubstantially as described.

9. In a compensating gear, the combina tion of a frame withtwospur-gears in axial alinement, one or more pairs of pinions, saidpinions engaged with each other and respectively engaged with thespur-gears, retainers holding the spur-gears in place, and pinionbearing-bolts forming axles for said pinions.

and having heads of sufficient size to cover the ends of said pinionsand also to engage the retainers covering the spur-gears holding them inplace, said heads and said retainersbeing flush with the frame-faces,all substantially as described.

10. The combination in a compensating gear, of aframe carrying spurgears and pinions, with'spur gears and pinions mounted therein, eachgear and pinion having an individual peripheral wall almost completelyencircling it, and an individual covering or retainer for each of saidspur gears and pinions.

11. The combination in a compensating gear, of a frame with a series ofhubless spurpinions carried therein and arranged in pairs and mounted ondetachable bearing-bolts, said bolts having large heads individuallycovering said spur-pinions, the two pinions of each pair engaging eachother substantially one-half their entire length, substantially asdescribed.

12. The combination in a compensating gear, of a frame having a seriesof like individual pinion-sockets in both faces thereof, each socketprovided with a bottom substantially flush with the inner face of therim of the spur-gear on the opposite side, with two driven spur-gears,each of said gears having their inner hubs journaled in a centralportion of said frame, pinions carried in said sockets and means forindividually covering,

holding and forming a bearing for said pinions, substantially asdescribed.

13. The frame B composed of bands having individual pinion-cases Z9 Z9Z2 opening on one face and Z1 I1 12 opening on opposite face,substantially as shown and for the purpose specified.

14. The combination in a compensating gear, of a circular frame having acentral opening through it and a series of pinion bearing-boltsindependent of each other and each bolt having a large head, said boltsarranged in pairs with their axes substantially parallel with each otherand the central opening, and bolts of each pair having their heads inopposite directions, substantially as described.

15. The retainer 0, having niches c c c in its outer periphery, saidniches having shoulders c and the central opening 0 substantially asshown, for the purpose specified.

16. The hubless pinions L and M and the spur-gears E and F, engagingeach other, detachable bearing-bolts having large heads completelycovering the ends of said pinions,

means for supporting said gearing, substan-' tially as shown, for thepurpose specified.

17. The combination in a compensating gear, of an open frame withinclosed spurgearing and each of said gears in an individual socket, andan independent driving member detachably secured to the outer band ofsaid frame, substantially as described.

18. In a compensating gear, the combination of two spur-gears with theframe, each gear having its inner hub journaled in the centralbearing-box of the frame, said bearing-box provided with flanges forminga support underneath the projecting rim of the spur-gears and forming abearing against the inner face of the webs of both spur-gears,substantially as described.

19. A compensatingear frame composed lugs projecting inwardly, oneseries on either spur-gears, said members serving as retainers sidethereof. and hearings to keep said spur-gears in place. 10

20. In a compensating gear, the combina- In witness whereof I subscribemy signation with the frame havingacentral bearing tu re in presence oftwo witnesses. 5 box, of two spur-gears in axial alinement and HUGH L.WARNER.

having their adjacent hubs rotatively mount- \Vitnesses: ed in saidbearing-box, and detachable frame M. SCOTT,

members substantially the same size as said S. TEGARDEN.

